Fibril(Fenofibrate)

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Fibril(Fenofibrate)

Quick Facts

Property Description
Active ingredient Fenofibrate
Form Oral (Tablet or Capsule)
Pharmacological class Antilipemic Agent (Fibrate)
General purpose Lipid-modifying agent (to balance blood fats)
Origin Synthetic (Fibric acid derivative)

What Type of Medicine is Fenofibrate? (Identity and Classification)

Fenofibrate is the active substance in the product Fibril, a synthetic medication classified as an antilipemic agent used to correct imbalances in blood fats. Chemically, it is a fibric acid derivative, which places it within the pharmacological class of fibrates, distinct from other major lipid-modifying groups such as statins. This classification confirms Fenofibrate's role as a compound recognized for its efficacy in lipid regulation. Fenofibrate is a prescription-only, single-ingredient product intended for the oral route of administration. Fenofibrate is categorized as a PPARalpha agonist, defining its targeted mechanism in the body’s lipid regulation systems. This means the medicine works by activating specific fat-processing receptors.


Composition and General Therapeutic Purpose (Form and Benefit)

Fenofibrate is a synthetic compound supplied in solid oral dosage form, typically as a tablet or capsule. These preparations often utilize technologies like micronized or nanocrystal formulations to optimize the systemic absorption of the drug. The use of these advanced formulations represents a distinguishing feature of newer fibrate products, designed to ensure efficient conversion of the fenofibrate prodrug into its therapeutically active metabolite, fenofibric acid. The overall general purpose of this medication is its powerful lipid-modifying effect, which helps to establish healthier blood lipid profiles. A typical scenario involves using Fenofibrate as an adjunct to diet in adult patients with abnormally high blood fat levels. Specifically, Fenofibrate works to reduce elevated levels of triglycerides and very-low-density lipoprotein (VLDL) particles, while simultaneously promoting an increase in beneficial High-Density Lipoprotein (HDL) cholesterol.

Regulatory References

  1. Fenofibrate: MedlinePlus Drug Information
  2. NIH Drug Information Portal

What side effects are possible with Fibril(Fenofibrate)?

Possible Side Effects and Safety Information

Fenofibrate's safety profile is documented based on classifications established by government regulatory authorities.

Regulatory Classification of Adverse Reactions

Adverse reactions are classified by frequency and system-organ class:

  • Common Reactions (occurring in 1 to 10 users out of 100): These frequently documented effects typically involve abnormal liver tests (increased transaminases) and gastrointestinal disturbances such as abdominal pain, nausea, and flatulence. Headache is also commonly reported.
  • Uncommon Reactions (occurring in 1 to 10 users out of 1,000): Effects in this category include pancreatitis, cholelithiasis (gallstones), certain muscle disorders (myalgia or muscle weakness), and the development of thromboembolism (e.g., Deep Vein Thrombosis).

Serious Adverse Reactions and Systemic Safety

Official regulatory documents identify several serious or clinically significant adverse reactions. These include Rhabdomyolysis (severe muscle breakdown), Hepatotoxicity (serious liver injury), and Venous Thromboembolic Events.

Side effects predominantly affect the Hepatobiliary disorders (liver and gallbladder) and Musculoskeletal and connective tissue disorders.


Population-Specific Safety Restrictions

Fenofibrate is contraindicated (should not be used) in patients with specific pre-existing conditions as defined in regulatory labeling. These include severe renal impairment, active liver disease, and pre-existing gallbladder disease. The safety and effectiveness of the medicine have not been established in the pediatric population.

Regulatory safety notes advise that liver function monitoring is often recommended for the first 12 months of treatment, as transaminase elevations are a common time-related observation.

Overdose and Emergency Response

If a Fenofibrate overdosage is suspected, regulatory guidance mandates that immediate medical attention must be sought. Official documentation reports only anecdotal cases of overdosage, with potential acute manifestations including nausea and diarrhea.

The primary regulatory concern focuses on the risk of severe, systemic toxicity, specifically the potential exacerbation of myopathy leading to rhabdomyolysis and subsequent renal failure. Patients are instructed to promptly report unexplained muscle pain or weakness to a healthcare professional, as this may be a sign of severe toxicity. Increased liver transaminase levels indicative of hepatotoxicity also require monitoring.

No specific antidote is known for Fenofibrate. Management is strictly limited to general supportive care and monitoring of vital signs and clinical status. For recent ingestion, gastric lavage may be considered. Due to the drug’s high protein binding, hemodialysis is not expected to be useful as a removal method. Specific overdose risk factors include pre-existing renal impairment and status as a geriatric patient, which may increase the likelihood of severe complications.

Therapeutic Uses of Fibril(Fenofibrate)

What Fibril (Fenofibrate) Treats: Main Uses and Benefits

The primary role of Fibril (Fenofibrate) is to support metabolic health by modifying unhealthy blood fat levels. This is commonly used as adjunctive therapy to diet and exercise in adult patients when lifestyle measures alone have been inadequate to manage certain systemic imbalances. Fenofibrate is used for managing major metabolic disorders, specifically mixed dyslipidemia and primary hypercholesterolemia, alongside addressing severe hypertriglyceridemia. The core therapeutic benefit contributes to the systemic adjustment of these high blood fat levels, which supports a more manageable systemic balance.


“This medication is applied in addressing symptom clusters that may become intense or disruptive due to profound lipid imbalances.”


Therapeutic Focus and Benefit

Fenofibrate is applied in addressing the overall quality of the lipid profile by significantly assisting with beneficial High-Density Lipoprotein (HDL) cholesterol levels while reducing harmful triglycerides. This is relevant when supportive symptom management is appropriate for patients with underlying metabolic conditions, such as Type 2 Diabetes Mellitus. When used for severe hypertriglyceridemia (triglycerides ge 500 mg/dL), the substantial reduction in these dangerously high fat levels may assist with reducing the overall symptom burden associated with acute episodes.

Quick Fact: Relief for Lipid Imbalances
Primary Focus: Addressing the specific pattern of high triglycerides, high VLDL, and low HDL cholesterol.
Acute Benefit: Supports easing the high symptomatic burden associated with acute or disruptive episodes linked to extreme fat levels.

Regulatory References

  1. NIH StatPearls overview

Eligibility and Restrictions for Use

Eligibility Profile: Who Can and Cannot Use Fibril (Fenofibrate)

Fenofibrate is strictly contraindicated for use in specific populations due to regulatory and physiological factors. The drug is primarily indicated for adult patients.

Classification Population/Condition Restriction Detail
Absolute Contraindication Severe Renal Impairment, Active Liver Disease, Preexisting Gallbladder Disease, Nursing Mothers, Hypersensitivity to Fenofibrate Use is strictly prohibited by regulatory authorities.
Conditional Use Mild-to-Moderate Renal Impairment, Pregnancy Requires careful dose management (renal impairment) or justification of potential benefit against risk (pregnancy).
Limitation Pediatric Population (under 18 years) Safety and efficacy have not been established in this age group.

The official eligibility profile is defined by firm, non-negotiable restrictions based on the patient's existing physiological status. Fenofibrate is formally prohibited in individuals with severely compromised organ function, specifically the kidneys and liver, as well as those with preexisting gallbladder disease. The state of lactation is also an absolute exclusion. Use in the older adult population is permitted, but eligibility and dosage must be based on an assessment of the patient's renal function.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation structures the interaction profile of fenofibrate around risks of additive toxicity, modifications to co-administered drugs' effects, and required separation from certain agents.

Category
Medicinal product categories with documented interactions
Specific interacting medicines (if explicitly listed)
Mechanistic basis of interactions (only if stated in label)
Timing-based interaction rules (if applicable)
Population-specific interaction notes (if applicable)

Official Interaction Statements

  • Co-administration with HMG-CoA Reductase Inhibitors (Statins) or other fibrates increases the risk of serious muscle toxicity, including myopathy and rhabdomyolysis.
  • Fenofibrate potentiates the anticoagulant effect of Coumarin anticoagulants (e.g., Warfarin), resulting in a prolonged Prothrombin Time / INR, necessitating careful dosage adjustment of the anticoagulant.
  • Fenofibric acid, the active metabolite, is cited as a mild-to-moderate inhibitor of the CYP2C9 enzyme, a regulatory statement classifying the potential for interaction with certain other substrates.
  • Fenofibrate must be administered at least 1 hour before or 4 to 6 hours after Bile Acid Binding Resins (e.g., Cholestyramine) to prevent the resin from impeding its absorption.
  • Co-administration with Immunosuppressants (e.g., Cyclosporine) carries a risk of deterioration of renal function.
  • The risk of muscle toxicity when co-administered with a statin is reported to be increased in geriatric patients and in patients with renal impairment.

Connection to the overall interaction profile

Regulatory documents define the product’s interaction structure by classifying interactions into significant pharmacodynamic toxicity risks (such as with statins) and pharmacokinetic alterations of co-administered agents (such as INR potentiation). The profile also establishes mandatory administration constraints, including necessary timing separation from certain non-systemic agents and required dose adjustments for interacting substrates.

Mechanism of Action

Targeting PPARalpha: The Master Metabolic Switch

The action of Fibril is driven by its active metabolite, fenofibric acid, which acts as an agonist for the Peroxisome Proliferator-Activated Receptor alpha (PPARalpha), a nuclear protein that regulates the transcription of genes central to lipid metabolism. This interaction initiates signaling sequences that modulate pathway activity in the liver and muscle tissue.


Accelerating Triglyceride Catabolism and Clearance

By activating PPARalpha, Fenofibrate increases the synthesis of Lipoprotein Lipase (LPL), an enzyme that hydrolyzes triglycerides, while simultaneously decreasing the production of Apolipoprotein C-III (ApoC-III), a protein that inhibits LPL. This synergistic effect accelerates the catabolism (breakdown and clearance) of triglyceride-rich particles (VLDL and chylomicrons), resulting in a reduction in plasma triglyceride concentration.


️ Modulating HDL Components and Uric Acid Excretion

The mechanism promotes the synthesis of key structural components for High-Density Lipoprotein (HDL), such as ApoA-I and ApoA-II, which influences the systemic lipid profile. Separately, the active metabolite mechanistically inhibits the URAT1 transporter in the kidney, which results in increased renal excretion of uric acid.

Dosage and Administration Information

How to Use Fibril (Fenofibrate)

Fenofibrate is administered solely by the oral route, typically as a capsule or tablet, and is intended for once-daily dosing. The specific dosage and administration context are determined by the formulation and the patient's individual profile. The standard maintenance dose for mixed dyslipidemia or primary hypercholesterolemia is often 145 mg or 160 mg once daily, while severe hypertriglyceridemia may begin with a lower, titratable dose.


Administration and Timing Protocols

Feature Official Instruction Principle
Physical Intake Tablets or capsules must be swallowed whole; the pill should not be crushed, split, or chewed, to preserve its specialized formulation integrity.
Food Requirement This instruction is formulation-dependent. Some products may be taken with or without food, while others are specified to be taken with a meal to optimize systemic absorption.
Dose Adjustment Dosing adjustments should only occur after lipid level determinations, which are typically performed at 4 to 8 week intervals after initiation or change.
Missed Dose If a dose is missed, a patient should not take a compensatory extra dose; the treatment should continue with the next scheduled daily dose.

Population-Specific Use Rules

Fenofibrate use is generally not recommended for the pediatric population (under 18 years) as safety and efficacy have not been fully established. Dosage requires mandatory modification based on renal function; treatment is avoided in cases of severe renal impairment (eGFR < 30 mL/min/1.73 m^2), and a dose reduction (e.g., 40 mg or 48 mg once daily) is required for mild to moderate impairment. Dose selection for older adults must likewise be based on a thorough assessment of their renal function.

Recent Clinical Evidence

Fibril (Fenofibrate): Recent Clinical Evidence

Core Research Focus

Fenofibrate, a medication in the fibrate class, has primarily been the subject of research focused on its potential effects on lipid profiles, specifically lowering high triglyceride (TG) levels and raising high-density lipoprotein cholesterol (HDL-C) levels. Studies investigate whether managing these blood lipid levels may be associated with improved health outcomes, particularly in patient populations with pre-existing cardiovascular concerns or type 2 diabetes.

Research has explored fenofibrate's intended biological target by focusing on its interaction with the Peroxisome Proliferator-Activated Receptor Alpha (PPAR-alpha) pathway. Activating this receptor is thought to lead to changes in the metabolism of fatty acids and lipoproteins.

Large-Scale Clinical Trials

Major clinical trials have tracked outcomes in high-risk groups, often those with type 2 diabetes and dyslipidemia. These studies assessed whether fenofibrate, when used in conjunction with other standard treatments, was associated with differences in the incidence of cardiovascular events. Findings were often mixed or showed limited effect on the primary composite cardiovascular outcomes in certain broad populations.

Research has also included specific assessments of the drug's role in managing diabetic retinopathy (damage to the retina caused by diabetes) and diabetic nephropathy (kidney damage related to diabetes) in subgroups of participants, tracking potential long-term differences in the progression of these microvascular complications.

Safety and Tolerability Observations

Safety profiles were recorded across various patient populations, with researchers tracking the incidence of adverse events and participant experiences over the trial periods. Some observations include the need for monitoring liver enzymes and the potential for muscle-related side effects. The full range of observations and long-term profiles compared to all existing treatments is not fully known, as evidence continues to be recorded.

Key Studies & References

  1. NICE Guideline: Lipid modification: cardiovascular risk assessment and the modification of blood lipids

Frequently Asked Questions (FAQ)

Common questions about Fibril(Fenofibrate) (FAQ)


Q: How quickly does Fibril (Fenofibrate) start to work?

The active substance, fenofibric acid, typically reaches its peak concentration in the blood within 6 to 8 hours after taking the dose. However, the overall therapeutic response, which is the full effect on blood lipid levels, is not instantaneous. According to official guidelines, lipid levels are typically reassessed after 4 to 8 weeks of continuous treatment to evaluate the full therapeutic effect.


Q: Is Fibril (Fenofibrate) considered a blood thinner?

Fenofibrate is classified as a fibrate, which is a lipid-regulating agent, and is not a blood thinner. However, official product information describes that it can enhance the effect of certain other medicines that are blood thinners, specifically those in the coumarin class (like Warfarin). This potentiation means that if taken together, the dosage of the blood thinner usually requires careful adjustment.


Q: Does Fibril (Fenofibrate) cause weight gain or loss?

According to official adverse event summaries, both weight gain and weight loss have been reported in association with fenofibrate use. This information is based on reports collected during clinical trials and post-marketing surveillance. The frequency of these weight changes is not typically categorized as a common or uncommon side effect in the primary trial data summaries.


Q: Can Fibril (Fenofibrate) affect blood sugar or cause diabetes?

Official adverse event summaries indicate that effects on glucose (blood sugar) metabolism have been reported. This includes reports of both hyperglycemia (high blood sugar) and hypoglycemia (low blood sugar), as well as diabetes mellitus. Fenofibrate is often studied in patient populations with type 2 diabetes, and its effect on blood sugar is noted in the official profile.


Q: What signs of a serious allergic reaction to Fibril (Fenofibrate) should people look out for?

Official product information describes signs of a serious allergic or hypersensitivity reaction. These can include generalized symptoms like hives or difficulty breathing. More specific signs may involve swelling of the face, lips, tongue, or throat. Severe skin reactions, which are considered clinically significant, have also been reported with the use of fenofibrate.


Q: Is it safe to drink alcohol while taking Fibril (Fenofibrate)?

Regulatory guidance advises patients to limit or avoid drinking large amounts of alcohol while using fenofibrate. Official guidance indicates that heavy alcohol consumption may increase the risk of serious side effects, such as liver damage and pancreatitis. In addition, heavy alcohol use may counteract the intended lipid-modifying effects of the medicine.


Q: Is there a preferred time of day to take Fibril (Fenofibrate)?

Fenofibrate is intended for once-daily dosing. Official instructions for some formulations state that the medicine can be taken at any time of day to fit the patient's schedule. This use condition is often formulation-dependent, and the medicine may be taken with or without food.


Q: What does the term 'fibrate' mean?

Fenofibrate is the active substance in the product, and it belongs to a category of medications known as fibrates. Fibrates are chemically classified as fibric acid derivatives. Their general purpose is to act as lipid-regulating agents that help modify the balance of blood fats, such as triglycerides and HDL cholesterol.


Q: Is Fibril (Fenofibrate) considered a generic medicine?

Fenofibrate is the name of the active drug ingredient. This ingredient is available under various brand names (such as Fibril, TriCor, or Antara) as well as being offered as a lower-cost generic alternative. The active ingredient remains the key component regardless of the product's brand status.


Q: Are all generic versions of Fibril (Fenofibrate) the same in effectiveness?

Fenofibrate is manufactured in various formulations, such as micronized or nanocrystal forms, which may affect how the drug is absorbed by the body. While all generic versions must meet regulatory standards for bioequivalence (meaning they act similarly in the body), these formulation differences are noted in the official product information.


Q: Is drowsiness or dizziness a common side effect of Fibril (Fenofibrate)?

According to the official side effect profile, dizziness is classified as a common adverse reaction, affecting between 1% and 10% of users. Drowsiness, or somnolence, has also been reported in surveillance. However, it is not typically categorized as a common side effect in the main clinical trial summaries.


Q: Are there any reported drug interactions with birth control pills and Fibril (Fenofibrate)?

Official drug interaction summaries include mention of potential interactions with hormonal contraceptives, such as birth control pills, patches, and implants. Interactions have been noted, indicating the potential for fenofibrate to alter the systemic effects of these hormonal agents.


Q: Can people with a history of pancreatitis take Fibril (Fenofibrate)?

Pancreatitis, or inflammation of the pancreas, has been reported in patients taking fenofibrate. Official warnings state that the effect of fenofibrate therapy on reducing the risk of pancreatitis has not been fully established. Regulatory documents therefore advise that caution is necessary, particularly for individuals with risk factors for this condition.


Q: Is Fibril (Fenofibrate) known to cause hair loss?

Hair loss (alopecia) is listed in the adverse reaction profile of fenofibrate, based on information collected during clinical trials and post-marketing surveillance. The reporting of this event does not classify its frequency among the most common side effects.

How should Fibril(Fenofibrate) be stored and disposed of?

Official Storage and Disposal Requirements

Fenofibrate must be stored according to regulatory specifications to ensure product stability. The required storage environment is Controlled Room Temperature (CRT), defined as 20 C to 25 C (68 F to 77 F), with excursions permitted up to 30 C.

Storage Constraint Requirement
Container & Protection Keep in the original container, tightly closed, and protect from excess heat and moisture.
Child Safety Store out of the sight and reach of children; safety caps must be locked.
Disposal Dispose of expired or unused product preferably via a drug take-back program or according to local regulations for safe household disposal.

Storage must avoid temperatures outside the defined CRT range, and the container must remain tightly closed to prevent moisture exposure.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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